Luck Giftwrapped by the Attentive EyeMy body begins to nervously jolt as if I were struck by lightning. Moisture begins dancing like an un-orchestrated ballet across my forehead and palms. I unnervingly remain mellow under the pressure of atomic joy. At last, the coin destined for any collection has found its way into my safekeeping. The brilliant reflection of its art battles with the overwhelming glisten cast across my eyes. This coin is the Pablo Picasso of the coin world, the piéce de résistance to every numismatist most unfathomable dreams. A 1933 $20 gold “double eagle” carelessly landed its way into my path and an instantaneous shadow was cast, ultimately becoming the foundation to my coin collecting addiction. When I stumbled across this gleaming beauty, I began to wonder “why coins?” An interest in any normal hobby was too easily managed. Suddenly it hit me; I knew this would be it. The thirst for water to a lost soul at sea was little comparison to the nature of this hidden treasure. I wanted to understand the need for a coin. The unanswered “Why?” became a burden tortuously clawing at my thoughts. What would be the point to collecting? Why do people collect them? I then raced to the nearest coin shop begging for an explanation to the magnificent gleaming wonder. Bursting through the door I yell, “I found gold”. The older grey bearded man behind the shady glass counter slowly wobbled to my service, clinching his aged wooden Cain in an uneasy manner. I gently lift the gold coin from my pocket as if its beauty were fragile. His loud wheezing is immediately interrupted by a cough. Passing him the coin I watch in slow motion as he brings up a shaky magnifying glass. Adjusting his low toned voice in a clearer manner he says “Son, where did you find this coin?” I answer “I found it in an abandoned barn”. With eyes glowing from astonishment he says “there are only 20 of these coins known to...

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...﻿Landon Timmons
Mrs. Madden
AP English B1
October 13, 2013
Second Chance
I have a unique hobby that some people find unusual. I collect coins. Coincollecting isn’t just getting a collection of the state quarters from your grandparents, it is much more. There can be many different ways that collectors get their coins. Coin collectors can find coins that are in circulation, metal detect in places for various coins, or simply buy coins. Circulation coins are coins that show wear from the public use. Coincollecting can be considered a “different” hobby. All my life, until I truly understood collectingcoins, I thought it was weird. I saw strange people walking in the park with a metal detector looking for coins, and I often thought, why would anyone waste their time doing something that boring? I also heard of people spending millions of dollars on one coin, which seemed outrageous to me. I could buy so many video games with that money. Finding coins in circulation and keeping them didn’t seem as weird to me, so that’s how I started my coin collection. As I became more educated about collectingcoins, I became even more interested in all the different ways to collect...

...﻿CoinCollecting
I have a unique hobby that some people find unusual. I collect coins. Coincollecting isn’t just getting a collection of the state quarters from your grandparents, it is much more. There can be many different ways that collectors get their coins. Coin collectors can find coins that are in circulation, metal detect in places for various coins, or simply buy coins. Circulation coins are coins that show wear from the public use. Coincollecting can be considered a “different” hobby. All my life, until I truly understood collectingcoins, I thought it was weird. I saw strange people walking in the park with a metal detector looking for coins, and I often thought, why would anyone waste their time doing something that boring? I also heard of people spending millions of dollars on one coin, which seemed outrageous to me. I could buy so many video games with that money. Finding coins in circulation and keeping them didn’t seem as weird to me, so that’s how I started my coin collection. As I became more educated about collectingcoins, I became even more interested in all the different ways to collect coins.
In coin...

...The Psychology of Collecting
By Mark B. McKinley (OH)
Everybody is a Collector Everybody collects something! Whether it be photographs of a person‟s vacation, ticket stubs from ballgames, souvenirs of trips, pictures of one‟s children, athletes‟ trophies, kids report cards, and those who collect “junk” (pack-rats) and dispose of it in garage sales. The Evolution of Collecting On the more formal side of “collecting,” it does seem that growing up as “kids,” we all collected something we made into a hobby. It could have begun with baseball cards, marbles, or stamps. Then it moved on: to antique books, Longaberger baskets, state quarters, or Atmos clocks. For others it was collecting the really unusual that worked best for them. People actually collect: bad poetry, barbed wire, knock-knock jokes, wax paper liners out of cereal boxes, swizzle sticks, string, mouse pads, phone books, type fonts, clothing of famous people, or Mersenne primes (prime numbers). Indeed, some collectors even collect collecting guides! And, speaking of the unusual, what about the names for the people who collect things? An archtophilist collects teddy bears, a deltiologist collects postcards, a numismatist collects coins, a vecturist collects subway tokens, and a clock collector is a horologist. Horologists are Special A note on being a horologist, it‟s tough. Compared with the collectibles noted prior,...

...What coins and notes can tell
Here are some notes and coins.
Can you spot the ones used in India?
What do we call the note and the coin in India?

You are right! In India

the note is called a Rupee



and the coin is called a Paisa
Do the Rupee ad the Paisa tell you something?
Let’s observe!
Look at the coin carefully. What can you see on the
coin?
What is at the centre of the coin?
What does the number stand for?
What is written on the coin?
Note in how many languages is it written.?
Why is there a date on the coin?
Who makes coins? Find out!
This is the other side of the coin. What do you
see here?
Do you know the symbol in the centre?
Have you seen the symbol anywhere else?
Why do you think the symbol was chosen?
What are some of the things that you see on the
note? List at least five things.
What are the notes made of?
Whose picture do you see on the notes?
Why has the picture been chosen?
The name of which bank is written on the note?
Is there a number on the right hand side?
Why do you think there is a need a number? Can two notes have
the same
number?
Do you see a signature? Find out who signs the note.
Who makes notes? Where are they made? Find out!
How do you know the note is not fake?
Ask your friends.
Discuss!
Check...

...Dynamic Programming Solution to the
Coin Changing Problem
(1) Characterize the Structure of an Optimal Solution. The Coin Changing problem exhibits optimal substructure in the following manner. Consider any optimal solution to making change for n cents using
coins of denominations d1 , d2 , . . . , dk . Now consider breaking that solution into two diﬀerent pieces along
any coin boundary. Suppose that the “left-half” of the solution amounts to b cents and the “right-half” of
the solution amounts to n − b cents, as shown below.
n−b
b
d1
d3
d1
d2
d4
d5
d2
Claim 1 The left-half of the solution must be an optimal way to make change for b cents using coins of
denominations d1 , d2 , . . . , dk , and the right-half of the solution must be an optimal way to make change for
n − b cents using coins of denominations d1 , d2 , . . . , dk .
Proof: By contradiction, suppose that there was a better solution to making change for b cents than the
“left-half” of the optimal solution shown. Then the left-half of the optimal solution could be replaced with
this better solution, yielding a valid solution to making change for n cents with fewer coins than the solution
being considered. But this contradicts the supposed optimality of the given solution, →←. An identical
argument applies to the “right-half” of the solution.
2
Thus, the optimal solution to the...

...﻿Essay on Autobiography of a Silver Coin
Life is a long tale of joys and sorrows and mine has been particularly so. I have travelled widely. I have been in the custody of people of all types. Some were miserly and wanted to keep me imprisoned. Others were extravagant and did not attach any importance to me. Sometimes, I was lost through carelessness and I lay on the ground covered with dust and my bright face devoid of any charm. Now that I am an old coin lying in the chest on an antiquarian. I can recollect some of the most exciting adventures of my life. Here are a few of them.
It was a bright summer day when I was handed over to a young gentleman across the counter of a bank. The gentleman took me. He seemed to like me. Therefore he put me in his pocket and took me home. Everyone who saw me praised me for my bright looks. I was soon placed in the cash-box. It was a pleasure to be in the company of so many coins, some of them as bright and beautiful as I was. I had some very happy moments of my life here. We talked, laughed and jingled if anyone touched us. It was really a very happy company.
I hoped to end my life here but it was not to be. One dark night some thieves broke into the house. They broke open the cash-box, and kidnapped me. The thieves saw me. They were attracted by my bright looks. The leader of the gang took me and handed me over to his wife as a token of his love for her. The wife was delighted to see me...

...by human in exact recognition of coins. Nowadays, most of the work of the human is replaced by machines. The coin classification of various denominations and finding the sum of the coins is a tedious process. Coin counting machine is user friendly and makes customer operation a breeze. This machine is equipped with an operating system. This counting machine has a display and prompts the customer to operate the system.Coin sorting machine is attached with required number of tagged bags to collect appropriate denominations of coin.
The generally used coin recognition machines are used at weight measuring machines employed at railway stations ,food vending machines deployed at airports , stations, educational Institutions as per the power of the currency . The coin has always been ( since its introduction in the market) has been a symbol of small value trading. Thereby its importance increases with due consideration to the small scale traders and the people for daily uses.
Automatic machines are used for Coins classification and recognition to find the sum of the coin is quite complicate.
In this project , we propose a coin recognition method by radius parameter detection approach. The effectiveness of the coins classification is ensured based on the parameters...

...Autobiography of a Coin
I was born in Mint near Mumbai. I am twelve years old and I was sent to Kolkata from Mumbai. You know who I am? Guess! I am a two rupee coin. I am telling you the days that I nearly spent. When I was made I was bright and shiny, but the man who was carrying me was careless and dropped me accidentally. I was sad. No one saw me and walked over me, without noticing me. Soon my shine also faded away. Days passed and I still lay in the corner unnoticed. But one day a girl’s eyes fell on me. She took me in her hand and kept me in her pencil box. Her name was Smita. This new place was nice, cool, safe and better for me. I lived there very comfortably. I passed two to three days in this box . Whenever Smita used to open her pencil box she used to see me smiling. After seeing me she was thinking something in her mind. One day Smita got a five rupees coin. She kept the coin beside me. Now I had a friend; with whom I used to share my joys , good feelings , bad feelings and my experiences of my life. It was also very happy with me. You know , what happened , One day Smita dropped me on the way when she was in hurry to get up on school bus . Without seeing me she kept her leg on me. I was crying with pain. When she removed her leg. I got some relief and took some breath . What bad day...